The synthetic fibres are also known as ______ fibres.
Man-made or Artificial fibres Regenerated fibres such as viscose rayon in 1892 and cellulose acetate in 1918 were the first... View Article
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Describe the characteristics and uses of coke.
Coke is a high-carbon product obtained by the destructive distillation of coal. The amount of carbon content in coke is... View Article
Mention the major events during photosynthesis
The three major events that occur during the process of photosynthesis are: Absorption of light energy by chlorophyll. Conversion of... View Article
Draw and identify different elements of phloem.
There are 4 elements of phloem- Sieve tubes, companion cells, phloem parenchyma and phloem fibers.Phloem fibers are the dead cells... View Article
Draw a neat labelled diagram of an animal cell.
As the name implies, an animal cell is a type of cell that is seen specifically in animal tissues. It... View Article
Explain the importance of soil for plant growth.
Soil is an important element essential for the survival of living organisms. The soil dissolves the minerals and nutrients in... View Article
Bryophytes have conducting tissue. (True or False)
False Explanation Bryophytes do not have to conduct tissues. They are non-vascular terrestrial plants of moist habitats in which a... View Article
Is ‘nutrition’ a necessity for an organism? Discuss.
Yes, nutrition is necessary for an organism. The process of obtaining and utilizing food for survival is known as nutrition. ... View Article
Why bee keeping should be done in good pasturage?
Beekeeping should be done in good pasturage because good pasturage provides more quantity and quality of nectar for honey to... View Article
What do you understand by composite fish culture?
Composite fish culture is the method to culture five or six species, both indigenous and exotic, together in a single... View Article
List out some common features in cat, rat and bat.
Bat, rat and cat belong to Class Mammalia and have the following common features (a) All have notochord at some... View Article
The substances which vapourise during __________, give flame.
The substances, which vapourise during burning, give flames. Explanation Combustion of kerosene oil produces a flame. On the other hand,... View Article
The fire produced by oil cannot be controlled by___________ .
Fire produced by oil cannot be controlled by water. Explanation Water cannot put off fire produced due to burning petrol... View Article
Why do people love to fly kites near the seashore?
In sea shore or coastal regions, during the day, the air above the land gets heated faster and starts rising.... View Article
Algae and fungi form symbiotic association called ______.
Lichens Explanation Algae and fungi form a symbiotic association and are called lichen. In this relationship, algae produce food and... View Article
Epithelial layer is permeable layer. (True or False)
True Epithelial layer is permeable and is found where small molecules cross the membrane by diffusion and filtration.All layers and... View Article
Explain the process of the formation of petroleum.
Petroleum products are obtained as a result of refining crude oil in oil refineries. There are numerous products that are... View Article
Differentiate between zoo and wild life sanctuary
Differentiate zoo and wild life sanctuary Zoo Wild life sanctuary It is a place where animals live in an artificial... View Article
Describe the process of urine formation in kidneys
The mechanism of urine formation involves the following steps: Glomerular Filtration Glomerular filtration occurs in the glomerulus where blood is... View Article
Explain the role of the mouth in digestion of food.
Mouth is the beginning of the digestive system which plays an important role in digestion. The role of Mouth in... View Article
